Display panel, display panel manufacturing method and electronic device

Abstract

The display panel, the display panel manufacturing method and the electronic equipment provided by the embodiments of the present application relate to the display technical field.The display panel comprises a display screen body, a supporting film located at one side of the display screen body, and a conductive piece penetrating through the supporting film and connected to the display screen body. By arranging the conductive piece penetrating through the supporting film and connected to the display screen body, an electrostatic discharge path for discharging the static electricity on the surface of the display screen body can be formed, so that the static electricity on the surface of the display screen body can be discharged in time, thereby avoiding the static electricity accumulation on the surface of the display screen body, protecting the display screen body and the display driving chip bonded with the display screen body, ensuring that the display panel will not appear display defects due to the static electricity accumulation on the surface of the display screen body, and improving the product quality of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display panel, a method for manufacturing the display panel, and an electronic device. Background Technology

[0002] Static electricity is easily generated during the manufacturing, testing, and use of display panels. If static electricity is not discharged or eliminated in time, it can easily cause display defects. In severe cases, it can even burn out the display body and the display driver chip bonded to the display body, affecting the product quality of the display panel. Summary of the Invention

[0003] In order to overcome the technical problems mentioned in the above technical background, this application provides a display panel, a method for manufacturing the display panel, and an electronic device.

[0004] A first aspect of this application provides a display panel, the display panel comprising:

[0005] Display screen body;

[0006] A support film located on one side of the display screen body; and,

[0007] A conductive component that penetrates the support film and is connected to the display screen body.

[0008] In the above structure, by setting a conductive component that penetrates the support film and connects to the display screen body, an electrostatic discharge path can be formed to release static electricity on the surface of the display screen body. This allows the static electricity on the surface of the display screen body to be conducted away in a timely manner, thereby preventing the accumulation of static electricity on the surface of the display screen body, protecting the display screen body and the display driver chip bonded to the display screen body, ensuring that the display panel will not have display defects due to the accumulation of static electricity on the surface of the display screen body, and improving the product quality of the display panel.

[0009] In one possible embodiment of this application, the display panel further includes a composite tape layer located on the side of the support film away from the display body, the composite tape layer including a grounded conductive layer, and the conductive element being electrically connected to the conductive layer.

[0010] Preferably, the composite tape layer further includes a polymer layer and a foam layer stacked on the conductive layer, the foam layer being in contact with the support film, and the composite tape layer having a groove corresponding to the conductive element, the conductive element being electrically connected to the conductive layer located at the bottom of the groove; or,

[0011] The composite tape layer further includes a conductive foam layer stacked on the conductive layer, the conductive foam layer being in contact with the support film, and the conductive component being electrically connected to the conductive layer through the conductive foam layer;

[0012] Preferably, the conductive layer is a metal conductive layer.

[0013] In one possible embodiment of this application, the display screen body includes a display area, and the conductive element includes a first conductive element;

[0014] The support film includes a first support film located between the first side of the composite tape layer and the display screen body corresponding to the display area;

[0015] The first support film is provided with at least one first through hole, and the first conductive element passes through the first through hole.

[0016] In one possible embodiment of this application, the number of the first through holes is multiple;

[0017] The shape of the first through hole can be a regular shape or an irregular shape;

[0018] The regular shapes include circles, ellipses, rectangles, triangles, trapezoids, or polygons;

[0019] Preferably, the plurality of first through holes are evenly distributed on the first support membrane.

[0020] In one possible embodiment of this application, the first conductive element includes conductive adhesive.

[0021] In one possible embodiment of this application, the display screen includes a bending area and a bonding area, the conductive element includes a second conductive element, and the bonding area is bent to a second side of the composite tape layer through the bending area;

[0022] The support film includes a second support film located between the second side of the composite tape layer and the display body corresponding to the bonding area;

[0023] The second support membrane is provided with at least one second through hole;

[0024] The second conductive element includes a first conductive portion that is at least partially disposed within the second through hole;

[0025] Preferably, the second conductive element further includes a second conductive portion located between the second side of the composite tape layer and the second support film for raising the display body corresponding to the bonding area, wherein the first conductive portion protrudes relative to the second conductive portion toward the second support film.

[0026] In one possible embodiment of this application, the first conductive portion and the second conductive portion are made of the same conductive material;

[0027] Preferably, the first conductive portion and the second conductive portion are integrally formed.

[0028] Preferably, the conductive material includes a titanium-aluminum alloy or a copper alloy.

[0029] A second aspect of this application provides an electronic device, the electronic device including a display panel in any of the possible embodiments of the first aspect.

[0030] A third aspect of this application provides a method for manufacturing a display panel, the method comprising:

[0031] The display screen body is attached to one side of the support film;

[0032] A conductive element is formed from the side of the support film away from the display body, penetrating the support film and connected to the display body.

[0033] In one possible embodiment of this application, the step of forming a conductive element that penetrates the support film and is electrically connected to the display screen body from the side of the support film away from the display screen body includes:

[0034] The support film is cut from the side of the support film away from the display screen body to form a through hole through the support film;

[0035] A conductive element electrically connected to the display screen body is formed within the through hole;

[0036] Preferably, a composite tape layer is attached to the side of the support film away from the display screen body, and the conductive element is electrically connected to the grounded conductive layer in the composite tape layer.

[0037] The display panel, display panel manufacturing method, and electronic device provided in this application include a display panel, a support film located on one side of the display panel, and a conductive component penetrating the support film and connected to the display panel. By providing a conductive component penetrating the support film and connected to the display panel, an electrostatic discharge path can be formed to release static electricity from the surface of the display panel. This allows static electricity on the surface of the display panel to be conducted away in a timely manner, thereby preventing the accumulation of static electricity on the surface of the display panel, protecting the display panel and the display driver chip bonded to the display panel, ensuring that the display panel will not experience display defects due to the accumulation of static electricity on the surface of the display panel, and improving the product quality of the display panel. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram illustrating the transfer of static electricity on a display panel is provided.

[0040] Figure 2 A schematic diagram illustrating an antistatic sidewall structure for a display panel in the prior art is provided.

[0041] Figure 3 One of the schematic diagrams illustrating a portion of the film layer structure of the display panel provided in this embodiment is shown;

[0042] Figure 4 Example Figure 3 A schematic diagram showing the film layers of the central display panel;

[0043] Figure 5 This example illustrates a second schematic diagram of a portion of the film layer structure of the display panel provided in this embodiment;

[0044] Figure 6 This embodiment illustrates a partial schematic diagram of the film layer structure of the display panel.

[0045] Figure 7 Example Figure 6 A schematic diagram of a planar structure of the first supporting membrane in the middle;

[0046] Figure 8 Example Figure 6 Schematic diagram of membrane layer decomposition in the central bonding region;

[0047] Figure 9 This embodiment illustrates a flowchart of the display panel manufacturing method.

[0048] Figure 10 A partial process diagram of the display panel manufacturing method provided in this embodiment is illustrated.

[0049] Icons: 10-Display panel; 110-Composite tape layer; 1101-Conductive layer; 1102-Polymer layer; 1103-Foam layer; 1103'-Conductive foam layer; 1104-Groove; 120-Display body; 120A-Display area; 120B-Bending area; 120C-Bonding area; 130-Support film; 1301-First support film; 13011-First through hole; 1302-Second support film; 13021-Second through hole; 140-Conductive component; 1401-First conductive component; 1402-Second conductive component; 14021-First conductive portion; 14022-Second conductive portion; 150-Polarizer; 160-Optical adhesive layer; 170-Cover plate layer; 180-Conductive film layer; 200-Display driver chip. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0052] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0053] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0054] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0055] The inventors discovered through research that static electricity generated during the manufacturing, testing, and use of the display panel mainly forms on the cover plate layer. Please refer to [link / reference needed]. Figure 1 The static electricity generated on the cover layer 170 will transfer towards the film layer inside the display panel (in the direction shown by the arrow in the figure), and then accumulate on the surface of the display body 120, which may lead to poor display or damage to the display panel.

[0056] Please refer to Figure 2 , Figure 2A schematic diagram of the sidewall structure of an antistatic display panel in the prior art is shown. A conductive film layer 180 that conducts through the entire sidewall of the display panel is formed by coating with an antistatic liquid, thereby forming an electrostatic discharge path from the cover plate layer 170, optical adhesive layer 160, polarizer 150, display body 120, support film 130 to the conductive layer 1101 in the composite tape layer 110. However, the conductive film layer 180 formed by the antistatic liquid is not wear-resistant and is easy to fail. In addition, due to the irregularity of the sidewall of the display panel, it is not easy to control when using antistatic liquid coating, and the film formation is difficult.

[0057] To address the aforementioned problems, the inventors have innovatively designed the following technical solutions, which will be described in detail below with reference to the accompanying drawings. It should be noted that the deficiencies in the existing solutions are the result of the inventors' practical experience and careful research. Therefore, the discovery process of the aforementioned technical problems and the solutions proposed in this embodiment below are contributions made by the inventors to this application during the invention process, and should not be construed as technical content known to those skilled in the art.

[0058] Please refer to Figure 3 , Figure 3 A schematic diagram illustrating a partial film layer structure of the display panel provided in this embodiment is shown. In this embodiment, the display panel 10 includes a display body 120, a support film 130, and a conductive element 140, wherein the support film 130 is located on one side of the display body 120. In the thickness direction of the support film 130, the conductive element 140 penetrates the support film 130 and is connected to the display body 120.

[0059] The aforementioned structure forms an electrostatic discharge path for releasing static electricity from the surface of the display panel 120. This allows static electricity on the surface of the display panel 120 to be conducted away promptly, preventing its accumulation and protecting the display panel 120 and the display driver chip bonded to it. This ensures that the display panel 10 will not experience display defects due to static electricity accumulation on the surface of the display panel 120, thus improving the product quality of the display panel 10. Furthermore, the conductive element 140 is located within the support film 130, preventing wear. Compared to coating the sidewalls of the display panel 10 with an antistatic liquid to form a conductive film layer, this structure enables long-term stable electrostatic discharge.

[0060] Further, please refer to Figure 4 , Figure 4 Example Figure 3 An exploded view of the film layer structure of the display panel, combined with Figure 3 and Figure 4In this embodiment, the display panel 10 further includes a composite tape layer 110, which is located on the side of the support film 130 away from the display screen body 120. The composite tape layer 110 includes a grounded conductive layer 1101, and the conductive element is electrically connected to the conductive layer.

[0061] In one embodiment of this invention, the composite tape layer 110 further includes a polymer layer 1102 and a foam layer 1103 stacked on the conductive layer 1101. The foam layer 1103 is in contact with the support film layer 130. The composite tape layer 110 has a groove 1104 corresponding to the conductive element 140. The conductive element 140 protrudes from the side of the support film layer 130 facing the composite tape layer 110, and the conductive element 140 is electrically connected to the conductive layer 1101 located at the bottom of the groove 1104.

[0062] Further, please refer to Figure 5 , Figure 5 Example: A schematic diagram of another partial film layer structure of the display panel provided in this embodiment. In another embodiment, the composite tape layer 110 further includes a conductive foam layer 1103' stacked on the conductive layer 1101. The conductive foam layer 1103' is in contact with the support film 130, and the conductive component 140 is electrically connected to the conductive layer 1101 through the conductive foam layer 1103'.

[0063] In this embodiment, the conductive layer 1101 can be a non-metallic conductive layer or a metallic conductive layer. Preferably, the conductive layer 1101 is a metallic conductive layer. For example, the conductive layer 1101 can be a copper foil layer.

[0064] Furthermore, please combine Figure 6 and Figure 7 In this embodiment, the display screen body 120 may include a display area 120A, the conductive element 140 includes a first conductive element 1401, and the support film 130 may include a first support film 1301 located between a first side of the composite tape layer 110 and the display screen body 120 corresponding to the display area 120A. The first side of the composite tape layer 110 is the side of the composite tape layer 110 facing the display screen body 120 corresponding to the display area 120A. The first support film 1301 may be provided with at least one first through hole 13011, and the first conductive element 1401 penetrates the first through hole 13011, that is, at least a portion of the first conductive element 1401 fills the first through hole 13011. The first conductive element 1401 may be implemented using a conductor such as conductive adhesive.

[0065] In the first support film 1301, when there are multiple first through holes 13011, the shapes of the multiple first through holes 13011 can be the same or different. The shapes of the first through holes 13011 include regular shapes or irregular shapes, wherein regular shapes include, but are not limited to, circles, ellipses, rectangles, triangles, trapezoids, or polygons. In this embodiment, the multiple first through holes 13011 can be evenly distributed on the first support film 1301 to minimize the movement of static electricity on the surface of the display screen body 120, so that the static electricity on the display screen body 120 can be quickly conducted away.

[0066] Please refer to Figure 8 , Figure 8 Example Figure 6 A schematic diagram of membrane layer decomposition in the Zhongbangding region, combined with Figure 6 and Figure 8 The display body 120 also includes a bending region 120B and a bonding region 120C. The conductive element 140 may include a second conductive element 1402. The bonding region 120C is bent through the bending region 120B to the second side of the composite tape layer 110, wherein the first side and the second side of the composite tape layer 110 are opposite sides. The display body 120 is bonded to the display driver chip 200 in the bonding region 120C.

[0067] The support film 130 includes a second support film 1302 located between the second side of the composite tape layer 110 and the display body 120 corresponding to the bonding area 120C, and the second support film 1302 is provided with at least one second through hole 13021.

[0068] In this embodiment, the second conductive element 1402 includes a first conductive portion 14021 at least partially disposed within the second through hole 13021. The inventors have discovered that if the bending radius of the display body 120 is too small when bent, a dead bend can easily occur. To solve this problem, the second conductive element 1402 further includes a second conductive portion 14022 located between the second side of the composite adhesive tape layer 110 and the second support film 1302, used to elevate the display body 120 corresponding to the bonding area 120C. The first conductive portion 14021 protrudes relative to the second conductive portion 14022 towards the second support film 1302. The elevating effect of the second conductive portion 14022 can ensure the bending radius of the display body 120 when bent, preventing a dead bend. Furthermore, the above-described structure of the second conductive element 1402 and the second support film 1302 helps prevent the second conductive portion 14022 from peeling from the second support film 1302, improving the stability of the film layer structure in the entire display panel.

[0069] In this embodiment, the first conductive portion 14021 and the second conductive portion 14022 can be made of the same conductive material or different conductive materials. When the first conductive portion 14021 and the second conductive portion 14022 are made of the same conductive material, they can be manufactured sequentially or simultaneously. When the first conductive portion 14021 and the second conductive portion 14022 are manufactured simultaneously, they can be an integrally formed structure. The conductive material can be a metallic conductive material or a non-metallic conductive material. For example, when the conductive material is a metallic conductive material, it includes titanium-aluminum alloy or copper alloy, etc.

[0070] An electrostatic discharge path is constructed at the corresponding location of the bonding area from the surface of the display body 120 to the conductive layer 1101. This path can quickly release the static electricity on the bonding area 120C and the bending area 120B near the bonding area 120C, ensuring that static electricity does not accumulate on the surface of the display body 120.

[0071] Furthermore, please refer to again Figure 6 The display panel 10 also includes a polarizer 150, an optical adhesive layer 160, and a cover plate layer 170, which are stacked sequentially on the side of the display body 120 away from the support film 130.

[0072] This application also provides an electronic device that may include the display panel 10 described in the previous embodiments. Because the display panel 10 has good anti-static properties, it can enable the electronic device to have a stable display function, ensuring the user experience and market competitiveness of the electronic device.

[0073] This application also provides a method for manufacturing a display panel; please refer to... Figure 9 , Figure 9 The following is a flowchart illustrating the display panel manufacturing method provided in this embodiment. Figure 9 The manufacturing method of the display panel is described in detail.

[0074] Step S11: Attach the display screen body to one side of the support film.

[0075] Step S12: A conductive element is formed from the side of the support film away from the display body, which penetrates the support film and is electrically connected to the display body.

[0076] Step S13: Attach a composite tape layer to the side of the support film away from the display screen body, and make the conductive component electrically connected to the grounded conductive layer in the composite tape layer.

[0077] Please refer to Figure 9 , Figure 9The example illustrates a portion of the process flow diagram for the display panel manufacturing method provided in this embodiment. Before step S12, the display panel manufacturing method provided in this embodiment further includes the following steps:

[0078] First, a polarizer 150 is attached to the side of the display screen 120 away from the support film 130.

[0079] In this embodiment, after attaching the polarizer 150, the display driver chip can be bonded to the bonding area of ​​the display body 120.

[0080] Next, the excess portions of the polarizer 150, the support film 130, and the display screen body 120 are cut off.

[0081] Then, an optical adhesive layer 160 is attached to the side of the polarizer 150 away from the display body 120.

[0082] Finally, a cover plate layer 170 is attached to the side of the optical adhesive layer 160 away from the polarizer 150.

[0083] In this embodiment, step S12 can be implemented in the following way.

[0084] Cut the support film 130 from the side of the support film 130 away from the display screen body 120 to form a through hole through the support film 130;

[0085] A conductive element 140 is formed within the through hole, which is electrically connected to the display screen body 120.

[0086] In the aforementioned display panel manufacturing process, the support film 130 is normally attached before the bonding section to protect and support the display screen body 120. After the cover layer 170 is attached, the cover layer 170 can provide reverse support and protection for the display screen body 120, reducing the role of the support film 130. At this point, by cutting the support film 130 from the side away from the display screen body 120, a through hole is formed in the support film 130. This allows the conductive component 140 to conduct electricity between the display screen body 120 and the grounded conductive layer 1101 in the composite tape layer 110 through the through hole, without affecting the normal use of the display panel 10 and facilitating mass production.

[0087] In summary, the display panel, display panel manufacturing method, and electronic device provided in this application include a display panel, a support film located on one side of the display panel, and a conductive component penetrating the support film and connected to the display panel. By providing a conductive component penetrating the support film and connected to the display panel, an electrostatic discharge path can be formed to release static electricity from the surface of the display panel. This allows static electricity on the surface of the display panel to be conducted away in a timely manner, thereby preventing the accumulation of static electricity on the surface of the display panel, protecting the display panel and the display driver chip bonded to the display panel, ensuring that the display panel will not experience display defects due to the accumulation of static electricity on the surface of the display panel, and improving the product quality of the display panel.

[0088] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, The display panel includes: Display screen body; A support film located on one side of the display screen body; and, A conductive component that penetrates the support film and is connected to the display screen body; The display panel further includes a composite tape layer, which is located on the side of the support film away from the display screen body. The composite tape layer includes a grounded conductive layer, and the conductive element is electrically connected to the conductive layer. The display screen body includes a bending area and a bonding area, the conductive element includes a second conductive element, and the bonding area is bent to the second side of the composite tape layer through the bending area; The support film includes a second support film located between the second side of the composite tape layer and the display body corresponding to the bonding area; The second support membrane is provided with at least one second through hole; The second conductive element includes a first conductive portion that is at least partially disposed within the second through hole.

2. The display panel as described in claim 1, characterized in that, The composite tape layer further includes a polymer layer and a foam layer stacked on the conductive layer. The foam layer is in contact with the support film. The composite tape layer has grooves corresponding to the conductive element, and the conductive element is electrically connected to the conductive layer located at the bottom of the groove; or, The composite tape layer also includes a conductive foam layer stacked on the conductive layer, the conductive foam layer being in contact with the support film, and the conductive component being electrically connected to the conductive layer through the conductive foam layer.

3. The display panel as described in claim 2, characterized in that, The conductive layer is a metal conductive layer.

4. The display panel as described in claim 2, characterized in that, The display screen body includes a display area, and the conductive component includes a first conductive component; The support film includes a first support film located between the first side of the composite tape layer and the display screen body corresponding to the display area; The first support film is provided with at least one first through hole, and the first conductive element passes through the first through hole.

5. The display panel as described in claim 4, characterized in that, The number of the first through holes is multiple; The shape of the first through hole can be a regular shape or an irregular shape; The regular shapes include circles, ellipses, rectangles, triangles, trapezoids, or polygons.

6. The display panel as described in claim 5, characterized in that, Multiple first through holes are evenly distributed on the first support membrane.

7. The display panel as described in claim 4, characterized in that, The first conductive component includes conductive adhesive.

8. The display panel as described in any one of claims 1-7, characterized in that, The second conductive element further includes a second conductive portion located between the second side of the composite tape layer and the second support film for raising the display body corresponding to the bonding area, wherein the first conductive portion protrudes relative to the second conductive portion toward the second support film.

9. The display panel as described in claim 8, characterized in that, The first conductive part and the second conductive part are made of the same conductive material.

10. The display panel as claimed in claim 9, characterized in that, The first conductive part and the second conductive part are integrally formed.

11. The display panel as claimed in claim 9, characterized in that, The conductive material includes titanium-aluminum alloy or copper alloy.

12. An electronic device, characterized in that, The electronic device includes the display panel as described in any one of claims 1-11.

13. A method for manufacturing a display panel, characterized in that, The method includes: The display screen body is attached to one side of the support film; A conductive element is formed from the side of the support film away from the display body, penetrating the support film and connected to the display body; A composite tape layer is attached to the side of the support film away from the display screen body, and the conductive element is electrically connected to the grounded conductive layer in the composite tape layer. The display body includes a bending area and a bonding area; the conductive element includes a second conductive element; the bonding area is bent to the second side of the composite tape layer through the bending area; the support film includes a second support film located between the second side of the composite tape layer and the display body corresponding to the bonding area; the second support film is provided with at least one second through hole; the second conductive element includes a first conductive portion at least partially disposed within the second through hole.

14. The method for manufacturing a display panel as described in claim 13, characterized in that, The step of fabricating a conductive element that penetrates the support film and is electrically connected to the display screen body from the side of the support film away from the display screen body includes: The support film is cut from the side of the support film away from the display screen body to form a through hole through the support film; A conductive element that is electrically connected to the display screen body is formed within the through hole.

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